AR-40 16" Side Charging LRBHO Pistol Upper Assembly with BCG - .40 S&W | Moriarti Armaments

Uppers

AR-40 16" Side Charging LRBHO Pistol Upper Assembly with BCG - .40 S&W | Moriarti Armaments

The AR-40 16" Side Charging LRBHO Pistol Cal Complete Upper Assembly in .40 S&W is designed to enhance your AR build with precision engineering and performance. Built with a non-reciprocating side charging billet upper receiver and featuring Last Round Bolt Hold Open (LRBHO), this upper ensures reliable cycling and a smooth shooting experience. Perfectly compatible with your MA-9 Glock Style lower receiver, this upper is ideal for those looking to build a versatile and high-performance .40 S&W AR.

Key Features:

• Barrel: 16" .40 S&W match-grade AR barrel made from 4150 chromoly steel, with a black nitride finish for durability. The 1:16 twist rate ensures optimal accuracy. .578x28 muzzle threads allow for easy attachment of the linear compensator included, which helps reduce recoil and muzzle rise.
• Upper Receiver: The side charging billet upper receiver is crafted from 6061 billet aluminum, hard-coat anodized per MIL-8625 Type 3 Class 2, and is compatible with Glock Mag AR-9/40/45 components, making it a versatile platform for custom builds.
• Gas System: This upper uses a blowback gas system designed for pistol-caliber rounds like .40 S&W. No feed ramps are needed for the blowback design, ensuring smoother operation.
• Handguards: The upper comes with a lightweight 15" free-floating slim M-LOK rail made from aircraft-grade aluminum and anodized in black for additional durability and sleek aesthetics. The rail offers excellent flexibility for mounting accessories.
• BCG: .40 S&W/10mm ramped BCG made from US-made 8620 steel with a mag phosphate finish. The M-16 cut makes it suitable for full-auto machine guns (following all BATFE rules). It’s compatible with Glock-style lowers (or AR-15 lowers with a mag adapter).
• Charging Handle: Side charging handle with adjustable tension slide lock for smooth, easy operation. The rear dust cover trap door ensures protection from debris when the upper is mated with your lower.
• Assembly: The upper assembly is fully assembled and tested before shipping to ensure the highest quality and reliability.

This AR-40 16" side charging upper is designed for those who want a reliable, powerful pistol-caliber upper with a smooth and consistent cycling mechanism. Whether you’re building a pistol or rifle, the AR-40 will provide the perfect platform for your custom AR project.

Please Note: This upper assembly is shipped fully assembled and tested. Lower receiver, sights, and magazines are not included. Images may not represent the exact product.